Anything less than this will struggle at some point, and even with this, overclocking is necessary to play all playable games at fullspeed. Of course, if it turned out you only wanted to play light games, then you may be fine with less. We'd have to know what you were going to play specifically, though.

OS: Windows 10 64 bit Professional
CPU: Intel i5 4670K @3.4GHz... for now @4.6GHz with a quick and dirty (yet stable) OC. May get faster in a bit before the end of time.
RAM: 16GB (Down from 24 GB after some was given to siblings)
GPU: Radeon Vega 56

You're probably going to have to go with the highest end alienware X51 configuration to run dolphin reasonably well. And like AnyOldName3 said you can build a much better system for a lot less money yourself.

"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."
-Ron Swanson

"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony

When I looked, the only option for a CPU was a 3.3 GHz Ivy i3, so there wouldn't be any real difference between configurations.

OS: Windows 10 64 bit Professional
CPU: Intel i5 4670K @3.4GHz... for now @4.6GHz with a quick and dirty (yet stable) OC. May get faster in a bit before the end of time.
RAM: 16GB (Down from 24 GB after some was given to siblings)
GPU: Radeon Vega 56

Best CPU option is the i7-4770 on the x51. You can't overclock an X51 because of the tiny 330W PSU, therefore they don't provide overclock-able processors. If you want the X51 because of its size, look at the Falcon Tiki, which can get a 4670k and be OC'ed, but is extremely expensive. Any PC that you build, while it will be a better value, will be much bigger than either the x51 or tiki. If space is not an issue, build your own. Most small form factor cases are bigger than the X51 anyways.
The other option is the ibuypower revolt, which can run an OC'ed 4670k, but the case is made out of plastic and it tends to be louder and hotter than the tiki. Read reviews.

You can get a small form factor case and build into it yourself if you need it to be small. You don't have to waste a tonne of cash on a pre-built system.

OS: Windows 10 64 bit Professional
CPU: Intel i5 4670K @3.4GHz... for now @4.6GHz with a quick and dirty (yet stable) OC. May get faster in a bit before the end of time.
RAM: 16GB (Down from 24 GB after some was given to siblings)
GPU: Radeon Vega 56

You can if you're using a retail motherboard. But the multiplier will only go 4x above stock. So you'll be capped at 4.3GHz with turbo (which is about how high you can OC ivy bridge anyways) and 3.9 GHz without.

AnyOldName Wrote:You can get a small form factor case and build into it yourself if you need it to be small. You don't have to waste a tonne of cash on a pre-built system.

^This.

AnyOldName Wrote:When I looked, the only option for a CPU was a 3.3 GHz Ivy i3, so there wouldn't be any real difference between configurations.

I'm not sure where you were looking then because on the dell site they have a variety of configurations ranging from an i3 to an i7.

"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."
-Ron Swanson

"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony

You can if you're using a retail motherboard. But the multiplier will only go 4x above stock. So you'll be capped at 4.3GHz with turbo (which is about how high you can OC ivy bridge anyways) and 3.9 GHz without.

People need to stop lying to me then , that is what I thought before, but someone told me you couldn't do it at all now >.>